well next would be check if its getting power in the line. You might can pull the cover and filters off on the inside and see a regular plug in that you can just unplug the AC and plug a light in and see if your getting power at least that far. Then you could actually blame the AC itself.

Typically a start capacitor is the cause of one quitting like that. You can troubleshoot like others have said but if it doesn't work go to the roof and take the A/C shroud off. Look for a couple of capacitors that might look something similar to ONE OF THESE. Mine are about your model year vintage and they are silver about 4 inches tall and round. Two heavy wires go to each one. If a capacitor is bulging it is likely bad but might be bad and not bulging. WARNING!!!! WARNING!!!! WARNING!!!! A capacitor stores electricity to start the motor so it may be CHARGED and it will hurt you if you touch the poles. DON'T TOUCH unless you know how to discharge the capacitor

Are you using the gen. for ac? If so do any outlets have power If not check the breaker on the gen. There are 2 breakers on the gen. one controls the power for the rv. plus front ac . the other controls the rear ac.

Joan and Bruce
05 Excursion 39L
powered by 350 KittyCATS on a Spartan
2010 Traverse LT toad (Blue Ox & Breakbuddy)
...and a "road dog" named Max and his gabby sister, Abby.
"May the wind be always at your back and your destination the one you chose"